285981280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137491}}^1$

素因数の和:137519

約数の個数: 48

約数和(自身を含む): 727607664

約数和(自身を除く): 441626384

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 137491, 274982, 549964, 687455, 1099928, 1374910, 1787383, 2199856, 2749820, 3574766, 4399712, 5499640, 7149532, 8936915, 10999280, 14299064, 17873830, 21998560, 28598128, 35747660, 57196256, 71495320, 142990640, 285981280]

約数ペア:

[(1, 285981280), (2, 142990640), (4, 71495320), (5, 57196256), (8, 35747660), (10, 28598128), (13, 21998560), (16, 17873830), (20, 14299064), (26, 10999280), (32, 8936915), (40, 7149532), (52, 5499640), (65, 4399712), (80, 3574766), (104, 2749820), (130, 2199856), (160, 1787383), (208, 1374910), (260, 1099928), (416, 687455), (520, 549964), (1040, 274982), (2080, 137491)]